[Bug 1890] New: mq_receive and mq_timedreceive NULL dereference

[bugzilla-daemon at rtems.org]

https://www.rtems.org/bugzilla/show_bug.cgi?id=1890

           Summary: mq_receive and mq_timedreceive NULL dereference
           Product: RTEMS
           Version: HEAD
          Platform: All
        OS/Version: RTEMS
            Status: NEW
          Severity: normal
          Priority: P3
         Component: cpukit
        AssignedTo: joel.sherrill at oarcorp.com
        ReportedBy: dufault at hda.com


Created attachment 1286
  --> https://www.rtems.org/bugzilla/attachment.cgi?id=1286
Don't dereference NULL pointers.

Open group says:
"If the argument msg_prio is not NULL, the priority of the selected message
shall be stored in the location referenced by msg_prio"

RTEMS implementation stomps on it.  Should go on 4.10 also.

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